1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright IBM Corp. 1999, 2024
4 */
5
6 #ifndef __ASM_S390_ACCESS_REGS_H
7 #define __ASM_S390_ACCESS_REGS_H
8
9 #include <linux/instrumented.h>
10 #include <asm/sigcontext.h>
11
12 struct access_regs {
13 unsigned int regs[NUM_ACRS];
14 };
15
16 static inline void save_access_regs(unsigned int *acrs)
17 {
18 struct access_regs *regs = (struct access_regs *)acrs;
19
20 instrument_write(regs, sizeof(*regs));
21 asm volatile("stamy 0,15,%[regs]"
22 : [regs] "=QS" (*regs)
23 :
24 : "memory");
25 }
26
27 static inline void restore_access_regs(unsigned int *acrs)
28 {
29 struct access_regs *regs = (struct access_regs *)acrs;
30
31 instrument_read(regs, sizeof(*regs));
32 asm volatile("lamy 0,15,%[regs]"
33 :
34 : [regs] "QS" (*regs)
35 : "memory");
36 }
37
38 #endif /* __ASM_S390_ACCESS_REGS_H */
39
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.